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. Author manuscript; available in PMC: 2016 Jun 19.

Published in final edited form as: AIDS. 2015 Jun 19;29(10):1183–1193. doi: 10.1097/QAD.0000000000000690

Table 2.

Lung cancer incidence during follow-up among current and former smokers in the WIHS and the MACS.

	Baseline		Lung cancer incidence
	N	%	N	P-yrs	IRper 100,000	95% CI		p-value
Cohort
WIHS	2549^a	37	37^b	24376	151.8	106.9	209.2	<0.0001
MACS	4274	63	23^c	45362	50.7	32.1	76.1

HIV status
Infected	3735	55	46	38645	119.0	87.2	158.8	0.001
Uninfected	3088	45	14	31093	45.0	24.6	75.6

Total	6823	100	60	69738	86.0	65.7	110.7

P-yrs = Person-years; IR = incidence rate; CI = confidence interval.

^a

Excludes 3 WIHS participants with lung cancer diagnosed prior to enrollment.

^b

Includes 31 HIV-infected and 6 HIV-uninfected women.

^c

Includes 15 HIV-infected and 8 HIV-uninfected men.